ProX
Piston Kits
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
FANTIC 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
XE 125 XE 125 XX 125 XX 125 XX 250
2021 - 22 54mm 2022 - 26 54mm
.A.PX .A.PX .A.PX .A.PX .A.PX
.PX .PX .PX .PX .PX
.PR .PR .PR .PR
.PX .PX .PX .PX .PX
.PROX .PROX .PROX .PROX
56-W845 56-W899 56-W845 56-W899 56-W742
56-R1266 56-R1266 56-R1266 56-R1266 56-R1259
56-0715 56-0715 56-0715 56-0715 56-0729
56-0174 56-0174 56-0174 56-0174 56-0181
56-814 56-814 56-814 56-814
2021
54mm
2022 - 26 54mm 2022 - 23 66.4mm
.PR
.PX
56-8010
FANTIC 4-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
XEF 250 XXF 250 XEF 450 XXF 450
2021 - 25 77mm 2022 - 26 77mm 2022 - 25 97mm
.A.PX .A.PX A.PX A.PX
.PX 56-6500.PR .PX 56-6500.PR
.PX .PX .PX .PX
– – – –
56-W8812 56-W8812 56-W4787 56-W4787
56-R1245 56-R1245 56-R1267 56-R1267
56-0176 56-0176 56-0181 56-0181
PX PX
– –
2022
97mm
GASGAS 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
2021 - 26 39.5mm 2021 - 26 45mm 2021 - 26 47mm 2021 - 25 54mm
MC 50 MC 65 MC 85 MC 125 MC 150
.A.PX .A.PX .A.PX .A.PX
.PX .PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
.PROX PROX
56-W802 56-W313 56-W012 56-W035
56-R1246 56-R1248 56-R1227 56-R1223 56-R1277 56-R1207 56-R1200 56-R1200 56-R1201 56-R1201
56-0166 56-0166 56-0170 56-0174 56-0174 56-0181 56-0181 56-0181 56-0181 56-0181
56-6513 56-6307
PX
.PROX .PROX .PROX .PROX
56-821 56-800 56-800 56-802
.PX
.PX
56-783
2025
58mm
.A.PX
PX PX
–
56-W6720
MC/EC/XC 250
1997 - 19 66.4mm 2021 - 24 66.4mm 2022 - 25 66.4mm 2000 - 19 72mm 2021 - 24 72mm
A.PROX .A.PROX .A.PROX
.PR
56-W157 56-W214 56-W214 56-W159
56-781
EC 250
.PX .PX .PX .PX
.PROX .PROX
.PROX .PROX
56-7924 56-7924
56-8020 56-8020
EX/MC 250 EC/XC 300 EC/EX 300
.A.PX
.PR
.PROX
56-781
56-802
.A.PX
.PROX
56-W9984
56-8020
GASGAS 4-Stroke Models EC 250F (Std. Comp. 12.5:1) EC 250F (Std. Comp. 13.8:1) EC 250F (Std. Comp. 14.5:1) EX 250F (Std. Comp. 14.4:1) EX 250F (Std. Comp. 14.5:1) MC 250F (Std. Comp. 14.4:1) MC 250F (Std. Comp. 14.5:1) EC 350F (Std. Comp. 13.5:1) EX 350F (Std. Comp. 14.2:1)
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
2010 - 15 77mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 24 88mm 2021 - 24 88mm 2023 - 25 88mm 2013 - 15 95mm 2013 - 15 95mm 2021 - 23 95mm
.A.PX .A.PX
.PX
.PR
.PX .PX
– – – – – – – – – – – – – – – – –
56-W188 56-W954
56-R1208 56-R1225
56-0718
56-0175 56-0176
.PX 56-6500.PROX
.A.PX
56-W4984 56-W265 56-W4984 56-W265 56-W4984 56-W4735 56-W4735 56-W4735
.A.PX
.PX 56-6500.PROX
.PX
56-R1278
56-0176
.A.PX
.A.PX
.PX 56-6500.PROX
.PX
56-R1278
56-0176
.A.PX
_00A.PX _00A.PX _00A.PX
.PX .PX .PX
.PROX .PROX .PROX
.PX .PX .PX .PX .PX .PX
56-R1202 56-R1202 56-R1202 56-R1209 56-R1209 56-R1203
56-0725 56-0725 56-0725
56-0181 56-0181 56-0181 56-0182 56-0182 56-0185
MC 350F
EC 450F (Std. Comp. 12.5:1)
.A.PX .B.PX .A.PX
.PX 56-0726.PR .PX 56-0726.PR
56-W222 56-W223 56-W956
(High Comp. 13.0:1)
EX 450F (Std. Comp. 12.75:1) EX 450F (Std. Comp. 13.1:1) MC 450F (Std. Comp. 12.75:1) MC 450F (Std. Comp. 13.1:1)
.PX
.PROX
56-7959
2024
95mm
.A.PX
56-W4985 56-W956 56-W4985 56-W8816
2021 - 23 95mm 2024 - 26 95mm
.A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
.A.PX .A.PX
EC 500F
2024
95mm
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
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